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- DictionaryTit for tat
noun
- 1. the infliction of an injury or insult in return for one that one has suffered: "as we struggled for those last two votes, the tit for tat continued"
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- Tit for tat
Effective strategy in game theory for the iterated prisoner's dilemma
Tit for tat is an English saying meaning "equivalent retaliation". It developed from "tip for tap", first recorded in 1558. It is also a highly effective strategy in game theory. An agent using this strategy will first cooperate, then subsequently replicate an opponent's previous action. If the opponent previously was cooperative, the agent is cooperative. If not, the agent is not. This is similar... Wikipedia
